No abstract available.
Adenocarcinoma* ; Mesentery* ; Teratoma*

CT remains the optimal imaging modality for diagnosing cystic and solid masses in the mesentery. CT may provide important information regarding the lesion? location, size and shape, the presence and thickness of a wall, the presence of septa, calcifications or fat, and the involvement of adjacent structures. Although percutaneous imaging-guided or surgical biopsy is often necessary to guide medical management, analysis of the CT features along with the clinical history may be helpful in differentiating mesenteric masses, including cystic lesions and primary neoplasms arising from the mesenchymal tissues or the secondary metastatic lesions. CT is useful not only for detecting cystic and solid mesenteric masses, but also for helping physicians become familiar with the features of various mesenteric masses for accurate diagnosis and treatment.
Biopsy ; Diagnosis ; Mesentery*

CT remains the optimal imaging modality for diagnosing cystic and solid masses in the mesentery. CT may provide important information regarding the lesion? location, size and shape, the presence and thickness of a wall, the presence of septa, calcifications or fat, and the involvement of adjacent structures. Although percutaneous imaging-guided or surgical biopsy is often necessary to guide medical management, analysis of the CT features along with the clinical history may be helpful in differentiating mesenteric masses, including cystic lesions and primary neoplasms arising from the mesenchymal tissues or the secondary metastatic lesions. CT is useful not only for detecting cystic and solid mesenteric masses, but also for helping physicians become familiar with the features of various mesenteric masses for accurate diagnosis and treatment.
Biopsy ; Diagnosis ; Mesentery*

PURPOSE: Mesenteric and omental cysts are uncommon lesions found all age groups. They elicit interest because of their unclear pathogenesis and confusing terminology. MATERIALS AND METHODS: CT findings of 12 case with mesenteric and omental cysts were described and compared with surgical and pathologic findings. RESULTS: In mesenteric and omental cyst, the histologic diagnoses were lymphangioma(7 cases), nonpancreatic pseudocyst(3 cases), mesothelial cyst(2 cases). Lymphangiomas were usually multiloculated with enhancing wall, located in the small bowel mesentery. And these cystic lesions were frequently attached to bowel and required resection of a bowel segment. In three cases of pseudocyst, thick and enhancing wall was shown in unilocular cyst. Two cases of mesothlial cyst were located in greater omenturn, showed very thin wall in unilocuation. CONCLUSION: The CT features of the mesenteric and omental cysts are fairly characteristic. Identification of lymphangioma, which shows a multilocuation and enhancing wall, is important due to frequent bowel resection in operative field.
Diagnosis ; Humans ; Lymphangioma ; Mesentery

Retrospective investigation was performed on 16 patients with lymphoid tumor in mesentery operated in Viet Duc Hospital from 1991 to 2001. Diagnosis signs of clinical value included: abdominal pain (93%), loss of body weight (56,2%), tumor palpable in abdomen (75%), mobile tumor (58,33%). 12/16 patients undergo an ultrasonic examination and in 4/12 ganglion tumor, 2/12-mesenterial tumor, 6/12 undefined tumor in the abdomen were detected. The operation must be considered to solve the complications (11/16 patients) and determine the phase of disease. Once the result of pathological anatomy is concluded, a post-operation chemiotherapy must be realized systematically
Lymphoid Tissue ; Neoplasms ; Mesentery

Visceral lipoma originating from the mesentery is very rare in childhood. A 29-month-old male presented with painless abdominal distension. Abdominal ultrasonography and CT revealed a huge multilobulated hypodense mass in the peritoneal cavity. Exploratory laparotomy showed a 26 x 25 x 5 cm sized encapsulated, lobulated, homogenous mass, which originated from the transverse mesocolon. Histologic examination revealed a lipoma. The postoperative course was uneventful.
Child, Preschool ; Humans ; Laparotomy ; Lipoma* ; Male ; Mesentery ; Mesocolon ; Peritoneal Cavity ; Ultrasonography

Herein, a case of a solitary primary paraganglioma arising in the mesentery, found in a hypertensive 70-year-old woman, who presented with nausea and postprandial abdominal discomfort, is reported. Ultrasonography and computed tomography showed a hypervascular mass abutting the second portion of the duodenum. An exploratory laparotomy revealed a 5.5 x 5.3 x 5cm sized mass in the mesentery of the transverse colon, which was histologically proven to be a paraganglioma. No intraoperative hemodynamic changes developed, and the postoperative course was uneventful. To our knowledge, this is the first case of a paraganglioma arising in the mesentery reported in Korea. Considering the unusual locations and the associated operative risk, it is necessary to rule out the possibility of a functioning paraganglioma in the preoperative differential diagnosis of an abdominal mass.
Aged ; Colon, Transverse ; Diagnosis, Differential ; Duodenum ; Female ; Hemodynamics ; Humans ; Korea ; Laparotomy ; Mesentery ; Mesocolon* ; Nausea ; Paraganglioma* ; Ultrasonography

The mesentery is a continuous unity and the operation of digestive carcinoma is the process of mesenteric resection. This paper attempts to simplify the formation process of all kinds of fusion fascia in the process of digestive tract embryogenesis, and to illuminate the continuity of fusion fascia with a holistic concept. This is helpful for beginners to reversely dissect the fusion fascia and maintain the correct surgical plane during operation, and to achieve the purpose of complete mesenteric resection.
Colonic Neoplasms/surgery* ; Gastrointestinal Neoplasms/surgery* ; Humans ; Laparoscopy ; Mesentery/surgery* ; Mesocolon

Lymphangioma is a tumor which is composed of lymph vessels and spaces containing lymph. It consists of endothelial cells and supporting tissue elements of the lymphatic system which are involved in the neoplastic process. Grossly, the cysts are thin walled and multiloculated. Intra-abdominal omental origin lymphangiomas are quite rare and only 21 cases were reported in English literature by 1978. The most common location is the mesentery, followed by the omentum, mesocolon, and retroperitoneum. We report a case of huge cystic lymphangioma originating from the greater omentum in a 14-year-old male patient with brief review of literatures.
Adolescent ; Endothelial Cells ; Humans ; Lymphangioma ; Lymphangioma, Cystic* ; Lymphatic System ; Male ; Mesentery ; Mesocolon ; Omentum*

Minimal invasive surgery (MIS), which is presented by laparoscopy, has developed for more than a quarter of century. More and more surgical operations can be finished by laparoscopy, not only for cholecystectomy, but also for some complex operations, even radical operation for gastrointestinal cancer, such as radical rectectomy, D3 colectomy, D2 gastrectomy. These operations have small incisions only, but with extensive injury and bleeding in the abdomen. Meanwhile, total mesorectal excision (TME) for rectal cancer and complete mesocolic excision (CME) for colon cancer have been proposed by surgeons in the field of open surgery. During those procedures, they suggested that it is very important to find out a "space", then expand it to a "holly plane", to achieve resection en bloc and less bleeding, namely "plane surgery". In fact, the "plane" is consisted of two membranes under laparoscopy, that is the membranes (fascia or serous) which come from the mesentery in broad sense(or tissue bloc) and its bed. Understanding of the membrane anatomy we proposed, which includes the mesentery in broad sense(or tissue bloc) and the mesentery bed, will help the surgeons identify the correct anatomy or plane intentionally or accurately, and perform operations more easily, more precisely with less bleeding, more radically and less side injury. However, It is not easy to identify the membrane anatomy by naked eyes or traditional laparoscopy. It is not only dependent on the development of knowledge of membrane anatomy, but also the instruments developed by industry. Now, it seems to become possible when industry of optic or glass developed some instruments, such as 3D laparoscopy, binocular loupe, which have the proper magnifying power and high density resolution, and can identify the membrane anatomy at macro level (not micro level). Wearing these instruments, based on the membrane anatomy(macro anatomy), the classical operations, which include traditional laparoscopy or open operation, progress from gross surgery to macro surgery. Macro surgery is more precise procedure and between the gross and micro surgery. The merge from clinical practice, basic science and industry results in macro surgery which will lead to a new surgery level.
Colectomy ; Colonic Neoplasms ; Fascia ; Gastrectomy ; Humans ; Laparoscopy ; Mesentery ; Mesocolon ; Minimally Invasive Surgical Procedures ; Rectal Neoplasms